Answer Description

Software as a Service (SaaS) is an internet or cloud based application accessible by consumers or customers. Crucial Exams, Google Search and Twitter are all common examples of SaaS.

Wikipedia

Software as a service (SaaS; pronounced ) is a software licensing and delivery model in which software is licensed on a subscription basis and is centrally hosted. It is sometimes referred to as "on-demand software", and was formerly referred to as "software plus services" by Microsoft. SaaS is typically accessed by users using a thin client via a web browser. SaaS has become a common delivery model for many business applications, including office software, messaging …